How does someone tell the difference between bootlegs and real?

[mikecavs11]

i just went to this store in vancouver today, that sold a lot of bootlegs. They had bout every ayu, koda kumi, and utada hikaru, and other japanese artist cds and dvds. at first i was like WOW i found the perfect store. but then i remember reading this thread so i looked around the cases. and all of them were from the same record company, "MIYA Records." Everything was well packaged, except they cases were slightly different from the real ones. If you own some of them you can definitely tell its not the same, but most were pretty close to the real ones. The covers were well printed. They even replicate the ones like arena tour 2005 My story.